8π ( octopi /ˈɒktəpī/ )

8π ( octopi /ˈɒktəpī/ )

8π ( octopi /ˈɒktəpī/ ) https://www.instagram.com/p/BERRnhRrTqg/

The octopus ( /ˈɒktəpʊs/ or /ˈɒktəpəs/; plural: octopuses, octopi, or octopodes; see below ) is a cephalopod mollusc of the order Octopoda. It has two eyes and four pairs of arms and, like other cephalopods, it is bilaterally symmetric. It has a beak, with its mouth at the center point of the arms. It has no internal or external skeleton (although some species have a vestigial remnant of a shell inside their mantles), allowing it to squeeze through tight places. Octopuses are among the most intelligent and behaviorally diverse of all invertebrates.

Octopuses inhabit diverse regions of the ocean, including coral reefs, pelagic waters, and the ocean floor. They have numerous strategies for defending themselves against predators, including the expulsion of ink, the use of camouflage and deimatic displays, their ability to jet quickly through the water, and their ability to hide. They trail their eight arms behind them as they swim. All octopuses are venomous, but only one group, the blue-ringed octopus, is known to be deadly to humans.

Around 300 species are recognized, which is over one-third of the total number of known cephalopod species. The term 'octopus' may also be used to refer specifically to the genus Octopus.

Etymology and Pluralization: The standard pluralized form of "octopus" in the English language is "octopuses" /ˈɒktəpʊsɪz/, although the Ancient Greek plural "octopodes" /ɒkˈtɒpədiːz/, has also been used historically. The alternative plural "octopi" — which misguidedly assumes it is a Latin "-us"-word — is considered grammatically incorrect. It is nevertheless used enough to make it notable, and was formally acknowledged by the descriptivist Merriam-Webster 11th Collegiate Dictionary and Webster's New World College Dictionary.

https://en.wikipedia.org/wiki/Octopus